alone in the world

Translations
один в этом мире
After his family moved away, he felt alone in the world.
После переезда его семьи он чувствовал себя одиноким в этом мире.
Definitions
A phrase describing a feeling or situation where someone perceives themselves as isolated, without support, companionship, or connection to others; often used to express deep loneliness or abandonment.
Words
world

noun
мир
alone

adjective
одинокий